FF87 320 grit 385 mm x 100 mm is a our high performance ceramic / ali oxide abrasive belt material with a a waterproof backing. FF87 is more flexible than the FX87 material which makes it really suitable for grinding and finishing bent tubes.
We recommend FF87 where high pressure / high volume stock removal is required on stainless steel, steel and aerospace alloys. for fine grinding
FF87 performs really well on wide belt sanders for graining stainless steel, on backstand grinders for stainless steel and high pressure steel applications and also on the Garboli through feed tube grinders and polishers.